“ To learn a little about what other kinds of civilizations are possible, we can study history and cultural anthropology. But we are all of us—us whales, us apes, us people—too closely related. ”
Carl Sagan, Cosmos (1980). copy citation
Author | Carl Sagan |
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Source | Cosmos |
Topic | civilization history |
Date | 1980 |
Language | English |
Reference | |
Note | |
Weblink |